Unfortunately, a lot of what is in this tutorial is dated but I’ve made an updated FCPX 10.1 Multicam Sync Tutorial here.

I thought I’d chronicle some of the things that I learned recently while cutting a music video with 20 angles. This goes into depth and has a bit of background for someone who has never used FCPX. I hope you enjoy it, lemme know if you enjoy it, I’ll make some more.

Nice tutorial. The reason for the black multiclip, is because it places the monitoring angles by alphabetical order. What it's doing is placing the audio in the top position, thus, black. You can rename clips prior to making the MC and get around that, or what I do, is sync only my video clips first into a Multicam clip, then add angle, rename it audio, drag my Zoom audio down to the new angle and set my monitoring angle to the top clip, and then set the Zoom audio to 'sync to monitoring angle using audio.' done. Basically, what it's doing is syncing that added angle using the audio synchronization feature to whatever monitoring angle you set.

The multicam clip that was created did become a 720p clip, instead of staying the actual 1080 that the original footage was. Another gotcha. Check the end of the tutorial. The clip properties are 720, then you click on an original clip and it says 1080.